@charset "UTF-8";

html, body {
    height: 100%;
}

body {
    margin: 0;
}

.main {
    height: 100%;
    display: flex;
    flex-direction: column;
}

header {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    height: 30px;

    z-index: 1000;
    background: url("../images/login.jpg") no-repeat center center/cover;
}


header > h1 {
    margin: 0;
    font-size: 20px;
    text-align: center;
    color: #ffffff;
}

footer {
    height: 70px;
    background-color: #fff;
    display: flex;
    border-top: 1px solid #eee;
}

footer > .item {
    width: 50%;
    text-align: center;
}

footer > .item.active {
    background-color: #49BCF740;
}

footer > .item.active > a {
    color: cornflowerblue;
}

footer > .item > i {
    display: block;
    font-style: normal;
    width: 25px;
    height: 25px;
    margin: 10px auto 0;
}

footer > .item > a {
    text-decoration: none;
    color: #666;
    margin-top: 5px;
    display: inline-block;
}

#n1 > i {
    background: url("../images/room.svg") no-repeat center center/cover;
}

#n2 > i {
    background: url("../images/fire.svg") no-repeat center center/cover;
}

#n3 > i {
    background: url("../images/message.svg") no-repeat center center/cover;
}

#n4 > i {
    background: url("../images/user.svg") no-repeat center center/cover;
}

.body {
    flex-grow: 1;
    overflow: scroll;
}

.body>iframe {
    width: 100%;
    height: 100%;
    overflow: hidden;
    border: none;
    outline: none;
}